will

require "pg"
require "time"
PG_EPOCH = Time.gm(2000,1,1).to_i

conn = PG.connect
tm = PG::TypeMapByOid.new
tm.add_coder PG::BinaryDecoder::Integer.new(oid: 1184)
conn.type_map_for_results = tm

def parse_text(r)

jnwheeler44

# Other settings have been omitted, the below changes are relevant
machine:
  pre:
    - sudo service postgresql stop
    - sudo apt-get purge -y postgresql*
    - sudo apt-get update
    - sudo apt-get install postgresql
    - sudo service postgresql start
    - sudo su - postgres -c "echo \"create user ubuntu with password 'ubuntu';\" | psql"
    - sudo su - postgres -c "echo \"alter user ubuntu with superuser;\" | psql"

toxatoor

# HTTP crawler inside nginx.
#
# start crawling by curl http://127.0.0.1:18080/?host=<START URL>
#

worker_processes  auto;

events {
    worker_connections  16384;
}

delameko

TL;DR

Install Postgres 9.6, and then:

sudo pg_dropcluster 9.6 main --stop
sudo pg_upgradecluster 9.5 main
sudo pg_dropcluster 9.5 main

NikolayS

-- Installs "file_fdw" extension and creates foreign table to work with data from CSV file.
-- See also the comment below which helps to automate the process for Google Spreadsheets
-- Another option would be using Multicorn for Google Spreadsheets, but it requires additional steps  
-- (see https://wiki.postgresql.org/wiki/Foreign_data_wrappers).

create extension file_fdw;
create server "import" foreign data wrapper file_fdw;

create foreign table "table1" (
  col1 text,

akorotkov

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Draw psql output as iTerm2 v3 inline graph using matplotlib
# Author: Alexander Korotkov <[email protected]>

import sys
import re
import warnings
import matplotlib
matplotlib.use("Agg")

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

johanndt

TL;DR

Install Postgres 9.5, and then:

sudo pg_dropcluster 9.5 main --stop
sudo pg_upgradecluster 9.3 main
sudo pg_dropcluster 9.3 main

wenzhixin

# install openjdk
sudo apt-get install openjdk-7-jdk

# download android sdk
wget http://dl.google.com/android/android-sdk_r24.2-linux.tgz

tar -xvf android-sdk_r24.2-linux.tgz
cd android-sdk-linux/tools

# install all sdk packages

brendangregg

So I just found ZFS on my test Linux ubuntu system, and gave my perf-tools (https://github.com/brendangregg/perf-tools) a spin.

Per-second zfs* calls:

# ./funccount -Ti 1 'zfs*'
Tracing "zfs*"... Ctrl-C to end.

Tue Aug  5 00:51:41 UTC 2014
FUNC                              COUNT